Lubricant system for use in powdered metals
AssigneeApex Advanced Technologies, LLC
InventorDennis L. Hammond
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Abstract
The present invention provides a lubricant system in the pressing of powders to form a part. The lubricant system is a solid at ambient conditions. However, upon application of pressure during the pressing of the metal parts, the lubricant system forms a liquid phase along the walls of cavity in which the powder is being pressed.
Claims12
A solid lubricant system for use in the production of metal powder compacted parts, said solid lubricant system comprising:
- (a) about 0.5 wt % to about 50 wt % of a guanidine material,
- (b) about 5 wt % to about 35 wt % of a fatty acid,
- (c) about 30 wt % to about 65 wt % of an amide wax
- (d) wherein said solid lubricant system is capable of forming a liquid phase upon application of pressure, and
- (e) wherein said solid lubricant system exhibits a viscosity of from about 1000 to about 6000 poise at a shear rate of 1000/second and a temperature of about 100° F.
A solid lubricant system for use in the production of metal powder compacted parts, said solid lubricant system consisting of:
- (a) about 0.5 wt % to about 50 wt % of a guanidine material,
- (b) about 5 wt % to about 35 wt % of a fatty acid, and
- (c) about 30 wt % to about 65 wt % of an amide wax.
The lubricant system of 11 wherein said lubricant system is capable of forming a liquid phase upon application of pressure, and wherein said lubricant system exhibits a viscosity of from about 1000 to about 6000 poise at a shear rate of 1000/second.
Dependencies are inferred from the claim text.